robinson



(mmel') J. R. ROBINSON.

DUMPING CAB..

No. 420,392. Patented Jan. 28, 1890.

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JOHN R. ROBINSON, OF NEWT YORK, N. Y.

DUMPlNG-CAR.

SPECIFICATION forming part of vLetters Patent No. 420,392, dated January 28, 1890.

Application filed .T une 10, 1889.

.To all whom t may concern.-

Be it known that I, JOHN R. ROBINSON, a citizen of the United States, residing at New York city, in the county and State of New York, have invented certain new and useful Improvements in Dumping-Cars; and I do hereby `declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the'art to which it appertains to make and use the same.

My invention consists of a car body or box made in two parts divided from each other longitudinally along the middle of the car and separately mounted on trunnions at t-he ends in an arrangement facilitating the dumping of the same on the respective sides of the car, as hereinafter fully described, reference being made to the accompanying drawings, in Which-` Figure lis a sideelevation of my improved dumping-car. Fig. 2 is a plan. view, and Fig.V 3 is an end elevation.

At or near each end of the platform a, I arrange the standards o, about half the height of the boxes c, and preferably extending across the platform in one structure for the bearing-supports of the boxes, which extend the whole length of the space between said bearing-supports, and have the trunnion pivots or journals d mounted in suitable bearings e thereon, said boxes being as wide as is practicable for being thus placed side by side longitudinally of the car, and also being of suitable bucket shape in end section for discharging freely when turned over for dumping, as indicated by the dotted lines at the right hand of Fig. --that is to say, having the over-projecting top and backwardlysloping outside from the top downward. The boxes are so pivoted that when loaded in proper trim they will naturally keep their upright position, but may beoverturned with moderate effort by the hands of one or two persons.

Along the middle of the car lengthwise I provide a strong upright frame, consisting, essentially, of the posts f andL beam g, and being a little higher than the top of the boxes, and having hooks to secure the boxes 5o for safety while loading and running by en- Serial No. 313,746. (No model.)

gaging the eye-studs j on the boxes, but capable of easy disconnect-ion when the boxes are to be dumped.

rlhe boxes are constructed of boiler-plate, and are re-enfqrced at the middle, both longitudinally and transversely, by strong inetallic bands lo l, of suitable capacity for stiifening the plate as needed, and the trunnions are attached to the band 7a by their flanges fm and bolts or rivets n..

It will be seen that the construction is very simple and the contrivance entirely practical and very useful. The advantages are obvious in comparison with the boxes dumping on one side only, or with those having a bottom sloping from the middle to each side with the sides arranged as gates opening outward.

The invention isdesigned more particularly for ore-cars; but it is alike useful for dump-cars for any purpose.

I am aware of the Blaine dumping-car, Patkent No. 366,917, in which the two boxes are pivoted under the bottom of the edges of the platform, so as to tilt thereon and have the front sides opening at the bottom on hinges at the top, and l do not claim such device.

I am also aware of the circular dumpingpans'pivoted on the short horizontally-rotating frame of Nesmiths device, Patent No. 388,708, in an arrangementfor mounting a series of such pans in a row along each side of the platform, so that the pans of either side can be swung to either side of the car for dumping.

My invention is designed to convert the ordinary platform-car into a practicable dumpingpar, whereof the boxis divided along the middle only and into two parts only.

' I claim as my invention` l. The combination, with the car-platform', of lthe standards extending across the platform, one at each end, and two dumpingboxes ext-ending from one to the other of said standards, side by side, and pivoted thereon by truunions attached to the ends, said boxes having the dumping-bucket shape formed by the over-projecting top and back- Wardly-sloping outside from the top down-s ward.

2. The combination, with. a car, of a duplex IOO dumping bodyorboxdivided longitudinally longitudinal strengthening-bzmds, substanro along the iniddlo of the can' and botlipznis tially as described.

pivoted it the ends on the suppoi'ting-bezn- IntestimonyWlieieofl affix mysignatuloin ings by truunion-pivots, so as to dump at the presence of two Witnesses.

5 sides of the om;1espeetively,said paitsof T the box orbodybeinginade of boiler o1' slieet- JOID R ROLINbON metal plate and re-enforoed with the longi- -Witnesses: uudinal and transverse strengthening-bands, S. M. WILKINSON, and the trunnion-pivots beingattaehed to the XVENTWORTH S. CONDUIT. 

